UPS RMH700/1000/1500
Instruction Manual
RMH Series
Page 29 of 37
Problem Possible
cause
Remedy:
Mains power is not
available to the UPS or
is switched off.
Ensure that all connections
have been established and
confirm this by means of
appropriate voltage
measurements. Check or
replace the fuse for the UPS.
The UPS cannot be
started and no alarm
signal is given.
The ON/OFF button was
not pressed down for
sufficient time.
Press the ON/OFF button for
approx. 2-3 seconds.
The UPS is in bypass
operation, the overload
indicator goes on and
an audible alarm signal
is given (sequence (C)).
The consumer load(s)
are overloading the
UPS.
Disconnect the consumer
load or some of the
consumer loads from the
UPS until the load indicator
shows <= 100%.
The bridging time is less
than the rated value.
The batteries are not
fully charged, or
individual batteries are
defective.
Charge the batteries for
more than 8 hours and
repeat the test. If the
problem persists, the
batteries must be replaced.
The UPS appears to be
OK, but the consumer
load is not operating.
The connection between
the UPS and the
consumer load is
defective.
Check the connection and
confirm it by measuring the
voltage
If the UPS fault profile you are experiencing is not described in the above table,
inform our service department and make sure you have the following
information to hand:
1. Model number, serial number
2. Date on which the problem occurred
3. Detailed description of the problem
